What do systematic reviews say?

Outcomes for all interventions for smoking cessation in pregnancy vs control: subgrouped by main intervention strategy (comparison 20)

Outcomes for all interventions for smoking cessation in pregnancy leads to higher abstinence at 0 to 5 months postpartum compared with control: subgrouped by main intervention strategy (comparison 20) (high certainty).

• Psychosocial interventions for supporting women to stop smoking in pregnancy 2017 · Cochrane Headline outcomes only
  RR 1.32 [1.17, 1.5]
  35 studies · 8366 participants
  High
• Psychosocial interventions for supporting women to stop smoking in pregnancy 2017 · Cochrane Headline outcomes only
  RR 1.35 [1.23, 1.48]
  97 studies · 26637 participants
  Moderate

Outcomes for all interventions for smoking cessation in pregnancy vs control: subgrouped by main intervention strategy (comparison 20)

Outcomes for all interventions for smoking cessation in pregnancy leads to lower low birthweight (under 2500 g) compared with control: subgrouped by main intervention strategy (comparison 20) (high certainty).

• Psychosocial interventions for supporting women to stop smoking in pregnancy 2017 · Cochrane Headline outcomes only
  RR 0.83 [0.72, 0.94]
  18 studies · 9402 participants
  High

Outcomes for all interventions for smoking cessation in pregnancy vs control: subgrouped by main intervention strategy (comparison 20)

Outcomes for all interventions for smoking cessation in pregnancy showed no clear difference in preterm birth (under 37 weeks) compared with control: subgrouped by main intervention strategy (comparison 20) (high certainty).

• Psychosocial interventions for supporting women to stop smoking in pregnancy 2017 · Cochrane Headline outcomes only
  RR 0.93 [0.77, 1.11]
  19 studies · 9222 participants
  High

Outcomes for all interventions for smoking cessation in pregnancy vs control: subgrouped by main intervention strategy (comparison 20)

Outcomes for all interventions for smoking cessation in pregnancy showed no clear difference in mean birthweight (g) compared with control: subgrouped by main intervention strategy (comparison 20) (high certainty).

• Psychosocial interventions for supporting women to stop smoking in pregnancy 2017 · Cochrane Headline outcomes only
  MD 55.6
  26 studies · 11338 participants
  High

Outcomes for all interventions for smoking cessation in pregnancy vs control: subgrouped by main intervention strategy (comparison 20)

Outcomes for all interventions for smoking cessation in pregnancy showed no clear difference in stillbirths compared with control: subgrouped by main intervention strategy (comparison 20) (high certainty).

• Psychosocial interventions for supporting women to stop smoking in pregnancy 2017 · Cochrane Headline outcomes only
  RR 1.2 [0.76, 1.9]
  8 studies · 6170 participants
  High

Outcomes for all interventions for smoking cessation in pregnancy vs control: subgrouped by main intervention strategy (comparison 20)

Outcomes for all interventions for smoking cessation in pregnancy leads to lower NICU admissions compared with control: subgrouped by main intervention strategy (comparison 20) (high certainty).

• Psychosocial interventions for supporting women to stop smoking in pregnancy 2017 · Cochrane Headline outcomes only
  RR 0.78 [0.61, 0.98]
  8 studies · 2100 participants
  High

Outcomes for all interventions for smoking cessation in pregnancy vs control: subgrouped by main intervention strategy (comparison 20)

• Psychosocial interventions for supporting women to stop smoking in pregnancy 2017 · Cochrane Headline outcomes only
  no estimate extracted
  13 studies · 13 participants
  High